Donovan Mahoney, a recovering addict, sits down with "In Focus" Host Cheryl Wills to talk about how safe injection sites helped get him sober and kept him alive. Liz Evans, the executive director of NY Harm Reduction Educators and the Washington Heights Corner Project, discusses her experience  helping establish the first safe injection site in Vancouver, and argues that the sites help reduce the rate of public drug use.

Watch "In Focus" with Cheryl Wills, every Sunday at 10:30 a.m. and 3:30 p.m.